Signature Series 4099 High Performance MultiPurpose Adhesive is recommended for the installation of most carpet backings used in heavy commercial applications. 4099 is an extremely aggressive adhesive which develops quick tack, for those hard to hold installations. 4099 is an excellent choice for installing carpet with Action-Bac, latex unitary, hot melt, axminster or Enhancer backings, in addition to the majority of carpet backings found in the market today in both direct and double-glue down applications. Signature Series 4099 can also be used in the installation of fibrous backed resilient floor covering.